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Win 7 Pro, 32 bit stuck at Black Screen during boot up
When Win 7 pro (32 bits) boots up, as we all notice, there is a second or so when there is a black screen, w/ just your mouse cursor, and then you are supposed to see the blue Welcome screen.
In the past 2 months, my computer is stuck at that black screen about 7 times, as recent as tonight. I've done a clean install w/ the latest Nvidia driver 2 weeks ago. No change. It looks like win 7 Pro is stuck there and waiting for something as my hard drive light blink on and off.
So, I would do nothing, or sometimes I would disconnect the HDMI port connects to my 3rd PC Panel (see below), and I would wait for 5 min. or so. Then my login logo shows up, I click it, and I got to windows.
Now, w/ the normal boot up, I don't have that login logo, win 7 pro will simply boot up directly to win 7 main screen after I turn on the computer.
Some1 said this could be IRQ sensing problem of the video card. But so far, I have no proof on that 1 way or the other:
All these started about 2 months ago, at or near the same time when the Sharp LED TV technician came to my house and upgraded all the firmware, including the firmware that consumers can't download, to my Sharp LED LCD TV, as the power button wasn't working.
Then in the past 2 mth., every time I turned on my LCD TV, which is connected to my computer as the 3rd screen via a DVI to HDMI cable, Win 7 senses this 3rd panel, and the screen went black and back on again. This isn't the way it used to be: as it WAS NOT SWITCH TO THE HDMI PC PORT.
My Sharp LCD has 4 HDMI output. Tonight for e.g., I was on Input 2, which is satellite, but as soon as I turn on the Sharp LCD, win 7 senses this 3rd screen, and the screen do that black screen then back on again w/ the music charm note.
This was not the way it used to be, in the past yr., w/ this same set up, win 7 only went to the black screen and back on when I switch to Input 1, which is PC at 1920x1080.
And I don't know if the above is related to the boot up lock up or not.